Home / 387,743.12-581,614.82-121,524.29

Finding the Fourth Proportional to 387,743.12, 581,614.82 and 121,524.29

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Solution

The fourth proportional to 387,743.12, 581,614.82 and 121,524.29 is: 182,286.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,743.12 : 581,614.82 = 121,524.29 : x
  2. Step 2: Convert to fraction form
    387,743.12/581,614.82 = 121,524.29/x
  3. Step 3: Cross multiply
    387,743.12x = 581,614.82 × 121,524.29
  4. Step 4: Simplify right side
    387,743.12x = 70,680,327,446.36
  5. Step 5: Solve for x
    x = 70,680,327,446.36/387,743.12
  6. Step 6: Final answer
    x = 182,286.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.